Ermite à gorge noire

Phaethornis atrimentalis

Petit colibri avec une longue queue à pointe blanche. Ses parties inférieures rousses, son dos vert et sa face striée sont des caractéristiques typiques de nombreux ermites, mais la gorge sombre et le croupion blanc l'aident à le distinguer d'autres espèces similaires. Il habite le sous-bois de la forêt tropicale humide en plaine à l'est des Andes et dans les contreforts adjacents. Il est difficile de bien l'observer car il file entre les fleurs dans la pénombre. Parfois, il émet un chant aigu et grinçant depuis un perchoir bas.

Identification

The black-chinned hermit is about 9 to 10 cm (3.5 to 3.9 in) long, with P. a. riojae being larger than the nominate. The species has generally greenish upperparts with a reddish rump and a white-tipped dark tail. The throat is dark brown and the rest of the underparts cinnamon red but for whitish undertail coverts. Males often have a dark band between the throat and breast. Females are similar to males but their throat is lighter and they generally have longer wings.

Taxonomie

The black-throated hermit was for a time considered a subspecies of little hermit (P. longuemareus), but is more closely related to the reddish hermit (P. ruber) and grey-chinned hermit (P. griseogularis). It has two subspecies, the nominate P. a. atrimentalis and P. a. riojae.

Nom scientifique
Phaethornis atrimentalis
Autorité
Lawrence, 1858
Ordre
Apodiformes
Famille
Trochilidés
Genre
Phaethornis

Répartition et habitat

The nominate subspecies of black-chinned hermit is found in the eastern Andes of Colombia, Ecuador, and northern Peru's Loreto department. P. a. riojae is found further south, in central Peru between the departments of San Martín and Pasco. The species inhabits the understory of rainforest (especially it edges), secondary forest, and more open landscapes such as plantations and swamp forest. It is mostly a bird of the lowlands but is found as high as 1,500 m (4,900 ft) south of Peru's Marañón River.

Migration
Resident species

Comportement

The black-throated hermit is believed to be sedentary.<p>The black-throated hermit is a "trap-line" feeder like other hermit hummingbirds, visiting a circuit of flowering plants of many species for nectar. It also consumes small arthropods.<p>The black-throated hermit's breeding phenology has not been documented. Observations indicate that its breeding season includes July and November in Peru and September in Ecuador.<p>The black-throated hermit's song is "a high-pitched phrase repeated incessantly without pauses between phrases...e.g. 'tsee ... tsee ... tsee ... tsee .. tseeetew'." Its call is "a high-pitched 'pseep!'" that is usually given in flight.

Conservation

Tendance de la population
declining

Photos

Distribution

Chants d'Oiseaux

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